anatomy

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Across
  1. 1. organ for breathing
  2. 4. vessel which carries blood to the heart
  3. 6. organ which cleans blood
  4. 7. muscles are made mostly of this
  5. 9. hard substance making up the skeleton
  6. 12. organ that pumps blood
Down
  1. 2. fibers transmitting impulses in the body
  2. 3. sore in the stomach caused by severe acidosis
  3. 5. this consists of conjugated proteins
  4. 8. protective covering of the body
  5. 10. substances help digestion in the mouth
  6. 11. organ digesting foods